Spool



Sept. 5, 1933. c, PARK 1,925,277

SPOOL Filed Jan. 22. 1931 /Z 7/////1/////, IV/l/l/l/l/l/A z" 32 I s n z OR Mk, ATTORNEY Patented Sept. 5, 1933 UNIED STATES PATENT FiFlE SPOOL Island Application January 22, 1931. Serial No. 510,493

1 (Claim.

This invention relates the type in which. there are disc shaped sheet metal heads fastened at each end to a barrel, which ordinarily would be non-metallic, by means of one or more holding tubes which extend through the passages in the barrel and are upset to fit into or outside of passages in the head which register with those in the barrel.

As fine yarn such as sill: or rayon is often wound on such spools, the space between the heads and around the barrel must be free from irregularities or openings which might catch the thread and as they are often used for steaming, they should be so made that the heating and cooling, moistening and drying will not distort them.

As now the heads have flat faces inside and outside and it is usually considered necessary to interpose a washer of felt or some simi lar material between the head and the end of the barrel as shown in Patent to Bray, #1,654,525 of January 3, 1928 on steam bobbins.

It is the purpose of this invention to reduce the number of parts, to reduce the weight of the spool and still to provide a spool which at the essential points is strong enough to resist being dropped on the floor or struck against machinery and one in which the joint between the ends of the barrel and the heads is so ti htly closed without the interposition of any felt washer that it not only cannot catch the thread but will not open or close with heat and cold or when subjected to alternate wetting and drying.

I accomplish this by using heads in which are circular recesses into which the ends of the barand by rigidly locking the parts together by one or more holding tubes the ends of which are so fixed to the heads that no loosening is possible.

In the drawing, Fig. 1 is an end elevation of a spool or" the type herein described.

Fig. 2 is a vertical sectional view as from the right of line 2-2 of Fig. 1.

Fig. 3 is a vertical sectional View as on the line 33 of Fig. 2 looking from the direction of the arrow.

Fig. 4 is a vertical sectional detail showing a modification of the construction.

Fig. 5 is a sectional detail of my preferred construction on an enlarged scale.

Fig. 6 is a view similar to Fig. 5 of a modified construction.

Fig. 7 is a sectional detail similar to Fig. 2 of another modification.

Fig. 8 is an enlarged sectional detail of the construction shown in Fig. '7.

to improved spools of edge or" a head wherein the rolled edge 51 ex- On account of the tubes and heads being made of relatively thin metal, some of the parts are exaggerated and the enlarged views are shown to more clearly show the construction.

In the drawing, B represents the non-metallic barrel of a spool having an axial passage 1 and at spaced intervals around it, other parallel barrel passages 2, 3 and 4.

H and H are discshaped sheet metal heads each of which has its outer rim rolled outward at 40 to form a substantially complete circular channel which on the assembled spool projects away from the barrel.

41 is a boss of circular shape outwardly pressed from the central part of each head concentric with the outer rim but extending out a less distance and of such a size that an end of the barrel fits snugly inside the complementary recess 49.

Through each head and through this boss such as 41 is a central head passage 11 which registe "s with passage 1 in the barrel and other head passages 12, l3, 14 which register with the barrel passages 2, 3 and 4 in the barrel;

Each head passage such as 11 has a projecting rim at the outside such as 21, 22, 23, 24 so that each of the holding tubes T T T T each of which passes through a barrel passage and through two head passages, can be expanded or spread so as to fit at each end outside of and around each head passage rim such as 21, 22, 23, 24 as a gromet thereby holding the whole assembly together with great firmness.

The outer faces of these gromets 31, 32, 33, 34 should be inside the outer edges of rim 40.

Radial passages 16, 16 from barrel passage 2 through tube T to the outside of barrel B are shown in Fig. 2. Such passages may be used in the other passages or omitted entirely.

In Fig. 4 is shown a modification of the rolled tends out at substantially right angles instead of being bent around into a complete circle. 59 is the barrel recess.

In Fig. 6 each head passage such as 61 spreads at 62 outwardly so that the inside of each outer rim of each head passage is larger than the inside at the inner face of the head 63.

As shown, each head passage flares or spreads about forty degrees.

Each tube is forced outwardly or spread at 65 to fit inside the head passage such as 61. 69 is the barrel recess.

In Fig. '7 is shown a spool construction in which each head such as 70 has only one head passage such as 71.

This head passage '71 as shown is in the center and has a rim '72 which extends directly out, the passage being the same size at the outside as it is at the inside.

The end '75 of the holding tube 73 is folded around in the form of a grornet '14 thereby holding the head firmly in position. This head 70 is shown as having a boss such as '76 to snugly receive the end '7? or" a barrel such as 78 in its recess 79.

I claim:

The combination in a spool; of a non-metallic cylindrical barrel having longitudinal passages;

CARL PALMER PARK. 

